Sheet-control device for printing presses



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Patented Jan. 26, 1926. 8

UNITED STATES PATENT OFFICE.-

BRUCE C. WHITE, OF NEW YORK, N. Y.; MARIA LOUISA WHITE EXECUTRIX 0F SAIDBRUCE C. WHITE, DECEASED.

SHEET-CONTROL DEVICE FOR PRINTING PRESSES.

Application filed April 18, 1922. Serial No. 554,885.

To all whom it may concern:

Be it known that I, BRUCE C. Wrrrrn, a citizen of the United States, andresident of New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Sheet- ControlDevices for Printing Presses, of which the following is a specification.

- The invention relates to sheet control de vices for printing presses,and more particularly to that classof machines in which the sheets to beprinted are first fed from a feed. board either manually or by anywellknown automatic feeders to front guides, and from which point theyare picked up by a feed drum and transferred tothe printing devices, thedrum being preferably of the class described in my co-pendingapplication filed April 18, 1922, Serial No. 554,886.

One of the objects of the present invention is to provide means forinsuring a more per- I feet register of the sheet with respect to thefront guides.

A further object is to provide a detector, held inoperative by the sheetwhen the latter is regularly fed to the guides, otherwise, to operate arejecting device adapted to hold back and prevent an untimed sheet frombeing ledintothe press, the said detector being also adapted to operateother devices not herein shown.

The invention also includes certain details of construction andarrangement of parts hereinafter set forth.

For further comprehension of the inven-- vation of a portion of aprinting press embodying the present invention.

Fig. 2 is a partial plan View thereof.

Fig. 3 is an elevation taken at the feed end of the machine.

Fig. 1 is an enlarged side elevation showing the principal partsrelating to the invention.

Fig. 5 is an enlarged side view showing certain of the parts more indetail.

FFig. 6 isa view taken at right angle to lg. Fig. 7 is a detail viewlooking at the bottom of the front guide.

Fig. 8 is a detail side view of the spring pressed pull guide finger. I

Fig. 9 is a detail plan view showing the assembly of the pull guide andthe detector fingers.

In the drawings, numerals 10 and 11 respectively indicate the front andrear frames of the press, in which is mounted in the usual manner aprinting couple comprising the impression cylinder 12 and the platecylinder 13. Also mountedv and operated in conventional manner forco-operation with the printing couple is the sheet carrier ring 1 1. Thefeed drum comprising a series of segmental rings 15 is fixed upon theshaft 16 and provided with a series of sheet grippers 15, theconstruction and operation of the several parts composing the feed drumbeing fully set forth in my co-pending application filed April 18, 1922,Serial No. 554,886.

Between the main frames 10 and 11 is fixed a' cross bar 17, on which arerespectively mounted the fixed front and rear brackets 18 and 19. A pairof intermediate brackets 20 are also mounted on this cross baror brace17 and arranged thereon for lateral adjustment with respect to themachine. The brackets 18 and 19 are provided with bearings in which aremounted the shafts 21 and 22, extending across the machine. Fixed uponthe shaft 21, adjacent the bracket 18, is an arm 23,-the free end ofwhich is forked to form a double bearing to receive the stub shaft 24,the latter having a transverse threaded perforation midway its length toreceive the threaded end of the connection in a pivotally mountedbearing 26, having a stem 27, mounted for turning movement in a shortextension of the bracket 18. For positioning the rod 25 within thepivotal bearing, the former is provided with a flange 28, which engagesone side of the bearing, the opposite side thereof being engaged by thehub of the hand wheel 29, fixed to the outer end of the rod.

Also fixed upon the shaft 21, adjacent the rear bracket 19, is aneccentric hub 30, on which is loosely mounted one end of the radius arm31, its opposite 'or outer end being provided with a stud 32, having onits inner end a friction roller 33 engaging a cam groove 34 formed inthe double acting cam 35, the latter being fixedly secured to theinterior of the spur gear wheel 36, which in turn is loosely mounted onthe shaft 16 and suitably positioned thereon against lengthwisedisplacement by collars, one thereof being indicated at 37. Rotation isimparted to the cam 35in the direction of the arrow by its fixedlyconnected gear 36, the latter being in turn driven by the spur gear 38,fixed to the shaft 39, rotatably mounted in the frames 10 and 11. Thislatter shaft is provided with a driving gear 40 which in turn is engagedby a gear on the impression cylinder 12 and from which the drivingmovements of the several parts are taken, the ratio of the several gearsbe ing proportioned to effect one turn of the cam 35 for each revolutionof the impression cylinder. Also by suitably arranged gearing thislatter cylinder is adapted to drive the feed-drum 15 at a variablevelocity and in a direction indicated by its arrow, the number of turnsof the drum corresponding with that of the cam, while the directionsthereof are opposite. For the driving mechanism of this drum, referencemay be had to my co-pending application filed April 18, 1922, Serial No.554,886.

Referring more particularly to Figs. 4, 5 and 6, the movement from thecam 35 is carried through the roller 33 and stud 32 to the lengthwiseadjustable connection rod 41, the lower end thereof being pivotallymounted on the stud, while its upper end is similarly connected to thefree end of the operating lever 42, the latter being fixed to the rockshaft 43, carried in the bracket bearings 19 and 20, each of the latterbearings being provided with-a bush 44 to receive the shaft. At one end,the bushes are provided with a flange 45 and are also held againstrotation by set-screws 46 threaded through the hubs of the bracketbearings. Also on the bushes are loosely mounted thefriction washers 45,one of the side faces thereof being engaged by the inner ends of thecompression springs 45 located in perforations formed in the web of thebrackets 20, the outer ends of the springs having terminal adjustment bythe set-screws 45 threaded in the web. Fixed upon the rock shaft 43,adjacent the flange 45 of the bush, is an actuating arm 47, havingthreaded in the hub thereof a pair of set-screws 48, the points of whichengage the flattened surface 43 on the shaft 43 whereby a slight turningmovement or adjustment may be made be tween the shaft and arm. This armis furthermore provided with a pair of jaws 49 and 50 and also withperforated hubs to receive the studs 51 and 52, the former stud beingreduced at one end to form a shoulder and provided at its outer end witha nut 53 by which the stud may be connected to the arm (see Figs. 5, 6,8 and 9). Upon the free end of the stud 51 are loosely mounted thedetector finger 54 and the pull guide finger 55, the two fingers beingseparated on the stud by a spacer 56 and held in place thereon by theinner flange thereof. A threaded perforation extends through the shortback end of the fingers 54 and 55 and in which perforations are fittedadjusting screws 57 which engage the lower ends of compression springs58, the upper ends of the latterbeing resisted by the square or free endof the stud 52, the lateral position of the springs at their upper endbeing held by pins 59, fixed in the square stud section. The springs asthus arranged normally serve to effect for the relatively long orforward end of the fingers 54 and 55 an adjustable yielding movement inan upward direction.

For the co-operation of the detector finger 54 and the pull guide 55, acontroller arm 60 is loosely mounted on the bush 44, between the flange45 thereof and the friction washer 45, adjacent the hub of the bracketbearing 20. At the lower end of the controller arm, an extension 61 isformed which is provided with opposite side faces adapted to be engagedby the jaws 49 and 50 of the actuating arm 47. Fixed to the bottomsurface of this extension 61, is an upper guide-plate 62 and anintermediate stop-plate or front guide 64, these plates being unitedlyfixed together, as indicated in the bottom View, Fig. 7. The arm 60 isfurther provided with a roller 65,

loosely mounted on the stud 66, suitably fixed in the said arm, theroller being alined with the pull guide finger 55, carried by theactuating arm 47, the roller and the finger engaging together under theupwardly yielding tension of the latter. At its upper end the controllerarm 60 is also provided with an extension 67, constituting, as hereshown, a forked or double bearing provided with a pin 68, on which ispivotally mounted the lower end of a link connection 69, the latterhaving at its opposite end a slotted perforation engaging a stud or pin70, fixed at the free end of a lever 71, fixedly secured to the shaft22. Upon this latter shaft is also fixed a plurality of hubs 72, in eachof which is adjustably mounted a rejector-bar 73, having at its lowerend a hook or bend adapted to engage the leading end of the sheet to beprinted and to reject the same if improperly positioned upon the feedboard with respect to the front guides.

The arrangement of the several parts of the machine as herein shown inthe drawings are respectively positioned to engage a sheet regularlyadvanced from the feed board 74 to a point at which its leading edge isadapted to be engaged by the grippers of the feed drum 15, in whichadvancement the edge of the sheet has passed between the upper and lowerguide-plates 62 and 63, and above the hook end of the detector finger54, to a position of engagement between the roller 65 and the pull guide55, this latter position of the sheet being somewhat short of contactwith the front guide, or stop-plate 64. As shown in Fig. 7, thestop-plate is provided with a beveled section midway its length forengagement by the detector hook, while at opposite ends of the beveledpart the front edge of the stop-plate is left square to engage theleading edge of the sheet. Fig. 8 shows the finger 55 with respect tothe several relative positions of the roller, the latter being shown bydotted lines, the position indicated by a corresponding with the initialengagement of the sheet, as positioned somewhat short of contact withthe stop-plate 64.

The sheet as thus fed to the front guides, is automatically advancedinto registered position by the action of the cam 35, rotated in theclock-wise direction indicated by the arrow, the consecutive divisionsof the cam action being indicatedrespectively by the broken lines a, b,c, d and e. (See Figs. 1, 4 and 5). The movements of the cam aretransmitted through the roller 33, rod 41, lever 42 and shaft 43 to thearm or support 47, which carries the detector finger 54 and the pullguide finger 55. In its movement between the radial lines a and b, thecam swings the arm 47 its full movement forward as indicated by thedotted lines 47, during the first part of which movement the armtogether with its connected guide and stop plates 62, 63, 64 and rollerremain stationary under the frictional action of the washer 45 exertedby the springs 45", thus allowing the forward action of thepull guidefinger 55 to rotate the roller 65 into the relative positions indicatedby the dotted lines a, b, 0, the tension between the roller and thefinger serving to exert a puling force upon the leading edge of theinterposed sheet to advance the same into contact with the stopplate 64,the tension of the pull guide members being suitably adjusted tov allowthe finger to slip over the under surface of'the sheet upon anyadditional pulling action thereof, the resilient detector finger 54 inthe mean time, sliding over the lower surface of the regularlypositioned sheet, remains inoperative. As the movement of the arm 47continues, the jaw 49 thereof reaches the point of engagement with theadjacent side face of the extension 61 formed on the arm 60, causing thelatter to jointly swing therewith throughout the remainder of its fullmovement against the frictional resistance of the washer 45*. In thismovement the arm 60 together with its connected parts are rotated to aposition clear of the path of movement of the feed drum 15, the extentof said arms rotation beingindicated by the spaced relation of the pin68 thereof, as shown in full and dotted lines. The movement of this pin,in connection with the slotted link 69, being insufiicient in thisinstance to operatively affect the lever 71. The above movements of theseveral parts are effected at each revolution of the cam 35 for theregularly positioned sheets to be received by the feed drum 15.

For sheets irregularly placed'with respect to the stop guides, thedetector finger 54 is free to move upwardly against the upperguide-plate 62, and in which position the arm 47 at the beginning of itsregular forward movement advances the detector finger to a point inwhich its terminal hook engages the beveled edge of the stop-plate 64and serves thereby to advance the initial movement of the arm 60 to anearlier period and thus increase its motion as indicated by the pin 68in its dotted position 68*, in which latter position the pin, throughthe link 69, has rotated the lever 71 to the extent shown thereof, thismovement of the lever being sufiicient to advance the rejector bars 73into their dottedposition, as shown in Fig. 4, and thereby reject anirregularly positioned sheet. It is to be observed that the rejectorbars will only be operated when the detector finger 54 hooks up with thestop-plate, and at the point corresponding with the final inwardmovement of the cam roller 33, indicated as on the radial line b, fromwhich point the roller has a quick outward movement to the radial linea, serving to rapidly release the rejector bars and allow them to assumetheir original outer position under the action of the, tension spring 75and the stop 76, the opposite ends of the spring being respectivelyconnected to the arm 71 and the pin 77, the latter fixed to the bracket20.

the feed drum 15, and upon the sheets final passage the arms arereturned to their inward position by the cam during its movement betweenthe radial lines 03 and e, and

.125 the path of the advancing sheet engaged by 100 between the dottedradial lines 01 and e between the radial lines e and a the cam in itscontinued uniform rotation holds the arms in their original inwardposition fo the engagement of a new sheet. I

As indicated in Figs. 2 and 3, the arms 47 and 60 together with theirregistering devices, as carried by the brackets 20, are adjustablyspaced apart upon the cross brace 17 and secured thereto by bolts 7 8passing through the foot of the brackets and into the threaded holes 79of the brace, the adjustable space allowing the registering devices tobe positioned adjacent the opposite side edges of the leading end ofsheets of variable widths. In positioning the brackets 20 for the aboveadjustment, the arms 47 and 71 are first released upon their respectiveshafts 43 and 22 and after sliding same into the desired positions theparts are again made fast.

For adjustably securing the rejector bars 73 to their hubs 72 set screws80 are used, similar screws being employed for adjustably fixing thehubs along their supporting shaft 22, the number of rejector barspreferably corresponding with the number of segments comprising the feeddrum 15 and with which latter at their gripping edges the barsco-operate to backwardly project upon the segments the leading end of anirregularly positioned sheet, having a displacement With respect to thestop, or front guides.

Also, for jointly adjusting the rejector bars, stop guides, detectorsand pull guides with respect to the leading end of the sheet andgripping ends of the drum sections 15, the rock shaft 43 is given avariable rocking movement by the operating lever 42 acting through therod 41 from the cam 35, this variation of movement being effected byshifting the cam roller stud 32 with respect to a plane extendingthrough the axis of the cams rotation and the axial center of thepivotal connection between the rod 41 and the lever 42. For obtainingthis shifting movement of the stud 32, the rock shaft 21 is oscillatedby the arm 23, pivotal stub shaft 24 having threaded engagement with rod25, rotatable by the hand wheel 29, the latter in. its movement servingto rotate in opposite directions the eccentric 30 fixed to said rockshaft 21 and through said eccentric to operate the radius arm 31 looselymounted thereon. arm or shifting motion of the cam roller as effected bythe eccentric is indicated at 30 by the spaced relation of the centersthereof, and at the opposite end of the arm by the correspondinglyspaced centers 32*, the latter centers being projected by the circulararcs of the arms movement to the positions 32 which indicate the extremeinward movement of the cam roller to be on a concentric curved linewithout change of rela- The lengthwise movement of the radius tion forthe downward or clearance position of the lever 42. At its outwardextreme of movement, the cam in operating the roller 33 in its severalpositions 32 serves to correspondingly change the upward extreme ofmovement of the arm 42 and thereby alter the rocking movement of shaft43 and cause a variation in the sheet engaging mechanism, which may beaccomplished by simply rotating the hand wheel 29.

In the foregoing description of the construction and operation of theinvention, it is to be understood that a sheet fed from the feed boardinto a correct or regular position upon the gripping ends of the stationary feed drum segments and into engagement with the adjacent pullguide members, will be, under the movement of the latter, advanced intocontact with the stop guides and registered thereby, and at which pointin the operation the grippers of the feed drum close upon and hold thesheet until the jointly connected pull guides and stop guides are movedforwardly their full throw to clear the passage of the sheet, which nowbegins its feeding movement. In the event of a sheet being fed from thefeed board incorrectly or irregularly so that either or both the leadingside edges thereof fail to properly engage the pull guides, one or bothof the detector fingers will engage the stop plate and act to advanceits initial movement to an earlier period, thus extending its terminalmovement to operate the rejector bars which engage the leading edge ofthe misplaced sheet and-project it backwardly upon the feed board.

It is to be understood that the feed board shown at 74 simply indicatesa support or means for the preliminary advancement of the sheets to thefront guides and may be accomplished in well known manner either by handor conventional automatic mechanism.

While I have shown and described an application of the presentinvention, it will be obvious that various detail changes may be made tocertain of the parts thereof for adaptations to other situations withoutdeparting from the general scope and principles herein set forth.

What I claim as my invention and desire to secure by Letters Patent, is:

1. In a printing press, sheet feeding means, a front gage provided witha stop guide member disposed while at rest to position the leading edgeof a sheet, a sheet engaging element carried by said member, a fingermovable with respect thereto and adapted to yieldingly cooperatetherewith to advance the sheet against said stop guide, means foradjusting said front gage during the running movement of the press tovariably position the leading edge of the sheet, and

a feed drum adapted while at rest to engage the sheet from said stopguide.

2. In a printing press, sheet feeding means, a front gage provided witha stop guide member disposed While at rest to position the leading edgeof a sheet, a sheet en aging element carried. by said member, a fingermovable with respect thereto and adapted to yieldingly cooperatetherewith to advance the sheet against said stop guide, a feed drumadapted while at rest to engage the sheet from said stop guide, meansfor adjusting said front gage during the running movement of the pressto variably position the leading edge of the sheet, and

means for jointly moving said stop guide' member and said finger out ofthe path of the sheet. a

3. In a printing press, the combination of a feed board, a pull guidedisposed beyond said feed board and arranged to engage a sheet fedtherefrom, a stop guide arranged beyond said pull guide, means foroperator said pull guide to advance the sheet into contact with saidstop guide, and feeding means arranged to carry the sheet from said stopguide to the printing devices, said I feeding means being arranged forstop motion to receive the sheet from said stop guide duringa period ofrest.

4. In a printing press, the combination of a feed board, a pull guidedisposed beyond said'feed board and arranged to engage a sheet fedtherefrom, a stop guide arranged beyond said pull guide, means foroperating saidipull guide to advance the sheet into contact with saidstop guide, feeding means arranged to carry the sheet from said stopguide to the printing devices, said feeding means being arranged forstop motion to receive the sheet from said stop guide during a period ofrest, and means for jointly advancing said pull and stop guides to clearthe movement of said sheet feeding means.

5. In a printing press, the combination of a feed board, a pull guidedisposed beyond said feed board and arranged to engage asheetfedtherefrom, a stop guide arranged beyond said pull guide, meansfor operating said pull guide to advance the sheet into contact withsaid stop guide, feeding means arranged to carry the sheet from saidstop guide to the printing devices, and means for jointly adjusting saidstop and, pull guides with respect to said sheet feeding means.

6. In a printing press, the combination of a feed board, a pull guidedisposed beyond said feed board and arranged to engage a sheet fedtherefrom, a stop guide arranged beyond said pull guide, means foroperating said pull guide to advance-the sheet into contact with saidstop guide, and a detector finger jointly actuated with said pull guideand held inoperative with respect to said stop guide by its engagementwith a regularly positioned sheet.

7. A front gage comprising upper and lower members mounted forindependent movement and disposed while at rest to receive the leadingedge of a sheet therebetween, a stop guide fixed to said upper memberand adapted to limit the forward registering movement of the sheet, asheet engaging element provided for said upper memberand arranged toengage the upper surface of the sheet, a pull guide finger carried bysaid lower member and disposed to yieldingly cooperate with the sheetengaging element of the upper member, means for advancing said lowermember while the up per member is at rest to urge the sheet against saidstop guide, and means for jointly moving said upper and lower membersfrom the path of the sheet.

8. In a printing press, the combination of a feed board, a pair ofco-operating pull guides and stop guides arranged to engage plurality ofrejector bars arranged to engage an irregularly positioned sheet, and apair of detectors respectively spaced adjacent said pair of guides andadapted to co-operate with said stop uides in the absence of a regularlypositionedsheet to operate said rejector.

9. In a printing press, the combination of I a a feed board, a pair ofco-operating pull guides and stop guides arranged to engage a sheetfedfrom said feed board, said pair being spaced apart to engage thesheet adjacent the opposite side edges thereof, a plurality of jointlyconnected rejector bars arranged to engage an irregularly positionedsheet, and a pair of independently operating detectors respectivelyspaced adjacent said pair of guides and adapted to co-operate with theirrespective stop guides to operate said rejectors in the absence of asheet regularly positioned at either of the leading side edges thereof.

10. A front gage comprising a pair of cooperating members disposed whileat rest to receive the leading edge of a sheet and yieldingly engage theop osite side faces thereof, one of said mem ers including a stop guide,means for moving the' opposite member with respect to the stop guide memher to urge the sheet against said stop guide, and means for jointlyadjusting said members during the running movement of the press tovariably position the leading edge of the sheet.

-11. A front gage comprising a shaft, a pair of cooperating membersoperatively mounted on said shaft and disposed while at rest to receivethe leading edge of a sheet and yieldingly engage the opposite sidefaces thereof, one of said members being provided with a stop guide andfrictionally held against movement, means for moving the opposite memberwith respect to the stop guide member to urge the sheet against saidstop guide, and means for jointly ad usting said members during therunning movement of the press to variably position the leading edge ofthe sheet.

12. A. front gage comprising a pa1r of cooperating members disposedwhile at rest to receive the leading edge of a sheet and yieldinglyengage the opposite side faces thereof, one of said members including astop guide and a rotatable roller, and the opposite member including apull guide fingeryieldingly engaging said roller, and means for movingsaid pull guide member while the stop guide member is at rest, wherebythe sheet is advanced between said roller and finger and yieldinglyurged against said stop guide.

13. In a front gage, a member provided with a stop guide and disposedwhile at rest to position the leading edge of a sheet, a roller mountedon said member, and a finger movable with respect thereto and adapted toyieldingly cooperate with and rotate said roller to advance the sheetagainst said stop guide.

14. In a sheet control, a pull guide comprising a controller armperiodically held immovable, an actuating arm, a roller carried by saidcontroller arm, a stop guide mounted on said controller arm, a fingercarried by said actuating arm and yieldingly engaging said roller anddisposed therewith to receive a sheet therebetween, and means foroperating said actuating arm to advance the sheet to contact said stopguide.

15. In a sheet control, a pull guide comprising a controller armperiodically held immovable, an actuating arm mounted coaxially withsaid controller arm, a roller carried by said controller arm, a stopguide mounted on said controller arm, a finger carried by said actuatingarm and yieldingly engaging said roller and disposed therewith toreceive a sheet therebetween, and means for operating said actuating armto advance the sheet to contact said stop guide.

16. In a sheet control, a rock shaft, a controller arm mounted coaxiallyon said shaft and periodically held immovable, an actuating arm fixed onsaid shaft adjacent said controller arm a stop guide mounted on saidcontroller arm, a roller carried by said controller arm, a fingercarried by said actuating arm and yieldingly ngaging said roller anddisposed therewith to receive asheet therebetween, and mea'ns'foroperating said rock shaft to advance the sheet to contact said stopguide.

and lower sheet guides fixed to said controller arm and disposed toreceive the edge of the sheet therebetween a stop guide fixed to saidcontroller arm, a roller mounted on said controller arm, a fingercarried by said actuating arm; and yieldingly engaging said roller anddisposed therewith to receive a sheet therebetween, and means foroperating said actuating arm to advance the sheet in contact with saidstop plate.

18. In a sheet control, a pull guide comprising upper and lower sheetguides and an interposed stop guide, a rotatable member, a finger inrelatively yielding engagement with said rotatable member and disposedtherewith to receive the edge of a sheet therebetween, and operatingmeans for the finger arranged to advance the sheet to contact said stopguide.

19. In a sheet control, a fixed support, a bush fixed in said support, arock shaft rotatable in said bush, a controller arm loosely mounted forintermittent movement on said bush and carrying a roller and a stopguide, an actuating arm fixed to said rock shaft and carrying a fingeryieldingly engaging said roller, and means for operating said rock shaftto advance the sheet to contact said stop guide.

20. In a sheet control, a fixed support, a bush fixed in said supportand provided with a flange at the free end thereof, a rock shaftrotatable in said bush, a friction washe' slidingly mounted on said bushadjacent said fixed support, a controller arm loosely mounted onsaid'bush between said flange and friction washer and provided withsheet advancing means, compression springs mounted in said fixed supportand engaging said friction washer to exert a tension on said controllerarm, an actuating arm fixed to said rock shaft and provided with sheetadvancing means co-acting with the advancing means of said controllerarm, and means for operating said rock shaft to advance the sheet tocontact said stop guide.

21. In a sheet control, a fixed support, a rock shaft carried by saidsupport, an actuating arm fixed to said rock shaft, a controller armloosely mounted co-axially on said shaft, frictional means periodicallyholding said controller arm against movement, interengaging sheetadvancing means carried by said actuating and controller arms, andoperating means for said rock shaft.

22. In a sheet control, a controller arm having a stop guide, anactuating arm, interengaging means carried by said controller andactuating arms to advance the sheet to the stop guide, a detector fingercarried -to operatively engage said controller arm,-

but held in operative with respect thereto by its engagement with aregularly positioned sheet.

23. In a sheet control, a controller arm having a stop guide, anactuating arm, interengaging means carried by said controller andactuating arms to advanc the sheet to the stop guide, a rejector bararranged to engage an irregularly positioned sheet, and a detectorfinger co-operating with said sheet advancing means in the absence of aregularly positioned sheet to operate said rejector bar.

24. In a sheet control, a stop guide, means for feeding a sheet thereto,a rejector bar arranged to backwardly project the leading end of anirregularly positioned sheet, and operating means for said rejector barcontrolled by the position of the sheet with respect to said stop guide.

25. In a sheet control, a stop guide, means for advancing a sheetthereto, a detector finger arranged on the path of said sheet, arejector bar arranged to backwardly project the leading end of sheetirregularly posi tioned with respect to said stop guides, and operatingmeans for said rejector bar controlled through said detector fingerwhere.

by the rejector will remain inoperative when the sheet is regularlypositioned.

26. In a sheet control, a stop guide, means for advancing a sheetthereto, a detector finger arranged in the path of said sheet, a rejector bar arranged to backwardly project the leading end of a sheetirregularly positioned with respect to said stop guide, and operatingmeans for said rejector bar controlled through said detector fingerwhereby the rejector will be operatedwhen the sheet is irregularlypositioned.

27. In a sheet control, a pair of stop guides spaced apart and disposedto engage the sheet adjacent its opposite side edges, means foradvancing the sheet to said stop guides, a air of detector fingersrespectively spaced at jacent said pair of stop guides and in the pathof said shget, a plurality of rejector bars arranged to intercept asheet irregularly positioned with respect to said stop guides, andoperating means for said rejector bars controlled through saiddetectorfingers by the position of the sheet with respect to said stopguides.

of rejector bars arranged to backwardly project the leading end of asheet irregu;

larly positioned with respect to said stop guides, said-rejector barsbeing jointly connected together and operating means for said rejectorbarsbeingjointly connected together, and operating means for saidrejector bars controlled through said detector fingers whereby the saidbars will be operated when the sheet is irregularly positioned at eitherof the leading opposite side edges thereof.

- 29. In a sheet control, a rejector bar arranged to backw'ardly projectthe leading end of a sheet irregularly positioned with respect to itsfront guides,'and means for adjusting the operative movement of saidrejector bar while the press is running.

30. In' a sheet control, a rejector bar arranged to remain normallyinoperative when the sheets are regularly positioned with respect to thefront guides, and to backwardly project the leading end of the sheetwhen the latter is irregularly positioned, and means for regulating theoperation of said rejector bar while the press is running.

31. In a sheet control, a plurality of jointly connected rejector barsarranged to remain inoperative when the sheets are regularly positionedwith respect to the front guides,

and operative means for said rejector bars arranged to backwardlyproject the leading end of the sheet when the latter is irregularlypositioned at either of the leading opposite side edges thereof, saidoperative means being adjustable While the press is running.

32. In a sheet control, a pair of jointly connected stop guides spacedapart for the engagement of the sheet, and means for independentlyadjusting the joint connection for varying the sheet-engaging positionof the guides with respect to each other.

33. In a sheet control, a pair of jointly connected stop guides spacedapart for the engagement of the sheet,' means for independentlyadjusting the joint connections and means for variably positioning saidstop guides for the engagement of and the clearance of the sheet, saidmeans beiljg operable while the press is running.

34. In a sheet control, a pair of jointly connected stop guides spacedapart for the engagement of the. leading end of the sheet, and jointadjusting means for varying the engaging position of said stop guides,said ning. I

35. In a sheet control, a rock shaft, a pair of stop guides-jointlyconnected thereto and spaced apart thereon for the engagement of thesheet, means for independently adjusting said stop guides about saidshaft for varying the sheet-engaging position of means being operableWhile the press is runthe guides with respect to each other, and meansfor adjusting the operation .of said rock shaft while the press isrunning.

36. In a sheet control, a rock shaft, a pair of stop guides jointlyconnected thereto and spaced apart thereon for the engagement of thesheet, and means for operating said shaft to variably position said stopguides for the engagement of and the clearance of the sheet.

37. In a sheet control, a rock shaft, a pair of stop guides jointlyconnected thereto and spaced apart thereon for the engagement of thesheet, and joint means for varying the engaging position of said stopguides, said means including a hand wheel operating to advance or retardthe terminal movements of said rock shaft.

38. In a sheet control, a stopguide, means for operating said guideincluding an actuating lever arranged at one extreme of its movement tocause said guide to engage and register the sheet at its oppositeextreme of movement to clear the path thereof, and means for adjustingthe movement of said lever to cause the ,sheet engaging position to varyand the clearance position thereof to remain constant.

39. In a sheet control, a stop guide, a pull guide, means for jointlyoperating said guides including an actuating lever arranged at oneextreme of its movement to cause said guides to engage and register thesheet, and at its opposite extreme of movement to clear the paththereof, and means for adjusting the movementof said lever to cause thesheet engaging position to vary and the clearance position thereof toremain constant.

40. In a sheet control, a stop guide, a pull guide, a plurality ofrejector bars and a etector, means for jointly operating said guides,rejector bars and detector including an actuating lever arranged at oneextreme of its movement to cause said guides to engage and register thesheet at its opposite extreme of movement to clear the path thereof, andmeans for adjusting the movement of said lever to cause the sheetengaging position to vary and the clearance position thereof to remainconstant.

41. Ina front gage, a member provided with a stop guide and disposedwhile at rest to position the leading edge of a sheet, a sheet engagingelement carried by said member, a finger movable with respect theretoand adapted to yieldingly cooperate therewith to advance the sheetagainst said stop guide, and means for jointly adjusting said member andfinger during the running movement of the press to variably position theleading edge of the sheet. I

42. In a sheet registering device, a rock shaft, a front gage mountedthereon, said front gage including a stop guide, means operated by saidrock shaft for advancing the sheet in contact with said guide and meansfor adjusting the relative movement of said rock shaft while the pressis in movement to variably position the leading edge of the sheet.

43. In a sheet registering device, a rock shaft, a front gage mountedthereon, said front gage including a stop guide, means operated by saidrock shaft for advancing the sheet in contact with said guide, and meansfor relatively adjusting the movement of said rock shaft while the pressis running, tovariably position the leading edge of the sheet.

44. In a sheet registering device, a rock shaft adapted to support andoperate a front gage for the advancement of a sheet thereto, and meansfor adjusting the relat ve movement of said rock shaft during therunning movement of the press to variably position the leading edge ofthe sheet.

45. In a sheet registering device, arock shaft arranged to support andoperate a front gage for the advancement of a sheet thereto, and meansfor variabl rotating said shaft for the adjustment 0 the gage.

46. In a sheet registering device, rock shaft arranged to support andoperate a front gage for the advancement of a sheet thereto, and meansfor variably rotating said shaft for the adjustment of the gage duringthe running movement of the press.

47. In a sheet registering device, a rock shaft, a front gage mountedthereon and operated thereby, a cam, connections between said cam androck shaft for operatin the latter, and means for adjusting saidconnections for variably operating said rock shaft.

48. In a sheet registering device, a rock shaft, a front gage mountedthereon and operated thereby, a cam, connections between said cam androck shaft for operating the latter, and means for adjusting saidconnections for variably operating said rock shaft while the press is inoperation.

49. In a sheet registering device, a rock shaft, a front gage mountedthereon and operated thereby, a rejector bar, means actuated by saidrock shaft for operating said ing the movement of said rock shaft duringthe regular running movement of the press.

Signed at New York in the county of New York and State of New York this4: day of April A. D. 1922.

BRUCE 0. WHITE.

rejector bar, and means for variably adjust-

